Internal-combustion motor



G. L. STREBLER.- ."WNTERNAL comsusnom MOTOR.

APPLICATION FILED NOV. l2. 1917.

Patented Sept. 2, 1919.

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G. L. STREBLER.

INTERNAL comsusnou MOTOR.

APPLICATION FILEDNOV. 12' 1917 Patented Sept. 2, 1919.

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exciton L. STREBLER, or ST. LOUIS, MISSOURI.

INTERNAL-COMBUSTION MOTOR.

Specification of Letters Patent.

Patented Sept. 2, 1919.

' Application filed November 12, 1917. Serial No. 201,485.

To all whom it may concern: I

Be it known that I, GEORGE L. STREBLER, a citizen of the United States,residing in the city of St. Louis and State of Missouri, have inventedcertain new and useful Improvements in Internal-Combustion Motors, ofwhich the following is a specification.

My invention relates to internal combustion motors, and consists in thecombinations, construction and arrangements hereinafter described andclaimed- The objects of my invention are, first, to provide a motorhavinga vertically reciprocating compression sleeve provided with anexplosion head near its lower end and adapted to operate in conjunctionwith a stationary compressing block having a longitudinal explosionchamber leading from overhead gas-intake and exhaust valves to andcommunication with an expansion chamber formed within thecompression-sleeve and with a compressionsleeve bearing; second, toprovide means for continuously lubricating the wall of the stationarycompressionblock and the wall of the reciprocating compression sleeve;and, third, to provide a comparatively short connecting rod forconnectingthe crank-shaft with the reciprocating compressiomsleeve.

Other objects and advantages will appear in the following specification,and the novel features of my improvements will be clearly pointed out inthe claim hereto appended.

My invention is clearly illustrated in the accompanying drawings forminga part of this application, on which, similar characters of referencedenote similar parts throughout the several views. i

Referring to the drawings:

Figure 1, is a vertical sectional view-of an internal combustion motor,with parts thereof broken away, and constructed in accordance with myinvention.

Fig. 2, is a'detail partly in section, clearly illustrating thestationary compressionblock, the reciprocating compression-sleeve, thecompression-sleeve bearing, and the self, continuous lubricatingmeans. 1

Fig. 3, is a vertical sectional view of the upper parts of the motor.

Fig. 4, is a transverse sectional view of the motor taken on line A-A ofFig. 3.

Fig. 5, is a detail showing modified means for supporting the stationarycompressionblock and protecting the inner working parts. i

Referring to the drawings the reference characterl designates the lowerhalf of a crank-case, while 2- designates the upper half of thecrank-case. The two halves are united by means of suitable fasteningmeans 3 and the upper wall of the upper half 2, of the cranir case, isprovided with a suitable opening A suitable crank shaft 5 is supportedwithin the crank-case by means of suitable bearings 6, Mounted upon thecrank-shaft 5 in the usual manner is a comparatively shortconnecting-rod 7. t

The crank-case is adapted to be sealed from all sides so that it may befilled with lubricant for'lubricating by means of full splash orfloating system. In fact the cranlp case is filled with lubricant to theheight of line BB, as shown, in Fig. 1, thereby providing a body of oilfor the crank shaft to turn in.

Mounted upon the upper face of the upper half of the crank-case 2 is acylindrical element designated 8. This element 8 is secured thereto bymeans of suitable fastening means.

The lower portion ofthe cylindrical element 8- which will be known as acompression sleeve bearing 9 is provided with a ground, smooth innerwall. 10 arranged concentric with the opening 4: of the crankcase. Theupper edge of the inner wall 10 is beveled or terminates in an outwardlyand upwardly inclined wall 1 1 forming an annular lubricant reservoir 12surrounding a compression-sleeve to be described hereinafter.

The upper portion'of the cylindrical element 8 is cored so asto form awater cham- 17 is connected by means of a wrist-pin 21 with the upperend of the connecting rod 7 which is adapted to impart a reciprocatingmovement to the compression sleeve 17. The upperend of thecompressionsleeve 17 is open and is provided with a beveled upper inneredge 22 forming an annular lubricant reservoir 23, around acompression-block,v

which will now be fully described for continuously lubricating the outersurface thereof.

A stationary compression-block 24 is employed having the ground outersurface 25 and provided near its lower end wlth suit able piston rings26. The compression-block 24 is adapted to tightly fit into or telescopethe compression sleeve 17, as clearly shown, in Fig. 1, therebyproviding an expans1on chamber 27 between the lower face of thecompression block 24 and the upper face of the explosion-head 20 of thecompressionsleeve 17. g

The compression-block 24 is provided with a longitudinalexplosion-chamber or channel 28 communicating at itslower end with theexpansion chamber 27, and at its upper end with valves hereinafterdescribed. A water chamber 30 is formed in the compre sion-block 24, andadapted to nearly surround the explosion-chamber 28 thereof. A coldwater inlet duct or channel 31 is also formed in the compression-blockthus permitting cold water to be fed directly to the bottom of thechannel 31 and feed to the bottom of the water-chamber 30 through theopening or passage 32. A water inlet pipe 33 is connected at the upperend of the water inlet channel 31 and a water outlet pipe 34 isconnected at the upper end of the watercl1amber'30 to permit outwardpassages of water heated from explosions within the compression block24.

The upper end of the compression-block 24 is provided with an annularflange 35 adapted to rest upon the annular shoulder 16 of thecylindrical element 8 for supporting the compression-block 24 in a fixedor stationary position. It will here be observed that the cylindricalelement 8 acts as a support for the compression-block 24, as a coolingelement for the upper parts of the motor and further as a sealingelement to prevent foreignsubstances from collecting on the outer wallof the'compression-sleeve 17 BEST AVAILABLE COPY as well as the outerwall of the compressionblock 24.

The outer surface of the compression block 24 is provided with a pair ofhelical oil grooves 36, as clearly shown in Fig. 2.

A threaded spark plug opening 37 is formed in the upper end or wall 38of the explosion-chamber 28.

The valve housing 39 having open ends is formed at the upper end of thecompressionblock 24 and to one side of the explosion chamber 28, and asecond valve-housing 40 having open ends is formed at the upper end ofthe' compression-block 24 integral with housing 39 and is provided withan exhaust port 41. a

A valve-cage 42 is threaded into position within the valve housing 39.An inlet valve stem 43 having a valve head 44 is slidably supported bymeans of the valve cage 42 and held normally closed bymeans of a coiledspring 44. The passage of the housing 39 connects the inlet valve to anintake manifold 45,

A valve cage 46 having an exhaust port 47 adapted to register withexhaust port 41 is positioned within the passage of the valvehousing 40and securely held in position by means 'of the threaded-nut 48. Anexhaust valve stem 49 having a valve head 50 is slidably supported bymeans of the valvecage 46 and held in a normally closed position bymeans of a coiled spring 51.

- The means for actuating the exhaust valve comprises a rocker member 52pivoted as at 53 to a support 54 and provided with the upper arm 55 andthe lower arm 56. The upper end of the upper arm 55 is adapted to forcethe exhaust valve-stem 49 and head 50 inwardly, at timed intervals, topermit exhaust gases to escape from the explosion chamber 29 through thevalve-cage 46 and port 41 into the exhaust manifold 57. The lower end ofthe lower-arm 56 is adapted to be forced outwardly, thereby moving theupper end or arm 55 inwardly by means of a plunger 58 slidably mountedin a bushing 59, carried by the boss 60 of the upper half 2 of the crankcase. The plunger 58 is in turn actuated by means of a. suitable exhaustcam 61 fixed to the shaft 62, coming in contact with the roller head 63of the plunger 58, as clearly shown in Fig. 1.

The inner surface of the upper half 2 of the crank-case is provided withofit'set portion or lip 64 above the roller-head 63 so that lubricantsplashed upon the lip 64 will run off and onto the cam 61 androller-head 63 for continuously lubricating same, as is manifest. Arocker arm adjusting screw 65 The plunger 58 is provided with a peripheral groove 66 adapted, when the plunger 58 is in its outermost positionto communicate with an oil channel 67 formed in the wall of thecrank-case. This arrangement permits lubricant that may flood around theplunger to find its way back into the crankcase.

A spark plug 68 is carried in the threaded opening 37 in the upper wall38 of the compression block 24.

The modification shown in Fig. 5, is exactly like the other figures,excepting that the cylinder 69 is separate from the compression sleevebearing 70, as clearly shown. In this instance the cylinder 69 acts onlyas a dust jacket for the inner working parts, as is manifest. Thecylinder 69 has no water chamber.

The operation of the motor is as follows:

The motor is a four cycle motor. The gas is admitted into the explosionchamber 28 and then to expansion chamber 27, through the gas inlet valvein the downward stroke of the compression-sleeve 17. The gas iscompressed into the explosion chamber 28 and partly within the expansionchamber 27, as is manifest, with the upstroke of the compression-sleeve.Upon completing the compression stroke the gases are ignited by means ofa spark from spark plug 68 and the force of the explosion in chamber 28forces the compressing-sleeve downwardly. The next up-stroke exhauststhe burnt gases through the exhaust valve, as is manifest.

The lubricating system provided for in this type of motor, it will beobserved, is continuous and may be termed a full splash and floatingsystem.

It will be observed that lubricant will collect in the annular channels12 and 23 from the Wall of the compression sleeve during thereciprocating movements of the compression sleeve thus providingcontinuous lubrication for the outer surface of the compression sleeve17 as well as for the outer surface of the compression block 24.

From the foregoing description, it will be observed, that the bearingsurface furnished by the compression-sleeve bearing and that of thecompression block eliminates possibility of what is known as pistonslap, thus preventing loss of compression due to compressionsleeve andcompression-block walls wearing.

It will be observed that it is impossible to flood and choke this motorwith oil, because of independent upper a d lower motor lubrication. Oilfrom. the crank-case cannot in any way flood the motor. This featureadds possibility of running the motor at any angle or upside down, as ismanifest.

From the above it will be seen that I provide a motor which is simple incon struction and operation, positively lubricated, one that can berapidly assembled, as well as dismembered in locating trouble, and amotor which has no bearing faces liable to abuse due unreliablelubricating system.

The particular details of construction illustrated are not essential tothe invention, and in view of the fact that many changes may be madewithout departing from the principles of the invention, I reserve theright to make any such changes or modifications as may fairly fallwithin the scope of the appended claim when fairly construed.

The many advantages of the herein described invention will readilysuggest themselves to those skilled in the art to which it appertains.

What I claim is:

In an internal combustion engine of the class described, comprising areciprocating piston sleeve in telescopic relation with a stationarycompression block to form an expansion chamber between the stationarycompression block and the piston sleeve and a water acket surroundingthe compression block and the piston sleeve, an oil space having abeveled lower end formed between the inner wall of the water jacket andthe wall of the piston sleeve, a. spiral oil groove formed upon theouter face of the wall of the compression block, an oil groove formed atthe upper end of the piston sleeve, and a water chamber formed in thecompression block having a side water inlet passage communicating at itslower end with the water chamber formed in the compression block andsaid water chamber having an outlet opening formed near the upper facethereof.

In testimony whereof, I have hereunto signed my name to thespecification.

GEORGE L. STREBLER.

copiel of thil patent niay be obtained for iive cents each, byaddressing the Commissioner of Patents, Washington, D. G.

